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9 commits

Author SHA1 Message Date
Elliott Hughes
6cb7db2b03 Merge "riscv64: use tail for tail calls." 2023-03-08 21:13:37 +00:00
Elliott Hughes
b0d3f0bcef riscv64: use tail for tail calls. 
Don't assume that a `j` will always be in range. Let the toolchain
come up with the shortest sequence that will actually work.

Test: llvm-objdump -d
Change-Id: I497a68ecae434aad173c2b1c8024aed3756b8440
 2023-03-08 18:22:29 +00:00
caowencheng
d27c83fbd4 Fix the compile errors "R_RISCV_JAL out of rang" when the jump range is greater than 1M memory space between vfork and __set_errno_internal 
the "tail" command is used here, let the compiler decide
which instruction to use. when the call distance is less
than 1M, it will be compiled into "jr" command, and when
the distance is greater than 1M, it will be compiled
into "aupic" and "jr" command.

Test: make libc
Change-Id: I80d099d25c7cc2439a297d8afc65abeb5a7a360c
Signed-off-by: caowencheng <caowencheng@eswincomputing.com>
 2023-03-08 01:44:50 +00:00
caowencheng
ab457f9022 memset_chk into assembly file 
Writing an assembly file can reduce several
assembly instructions, and compare it through
the disassembly of this file

Test: make libc
Change-Id: Ifdcc9c76742cc95b2ad9e3c14fac4796c36e12e6
Signed-off-by: caowencheng <caowencheng@eswincomputing.com>
 2023-03-06 07:23:10 +00:00
Elliott Hughes
6a1dc51679 riscv64: don't go via the PLT for setjmp. 
I don't think we need or want to do this. Most other architectures
don't.

Test: bionic-unit-tests-static
Change-Id: I3ad31926909caf0a37e73ac6cbac1fecd02ea6de
 2022-10-26 19:53:35 +00:00
Elliott Hughes
45a84869c4 riscv64: fix setjmp so we're actually using the right cookie! 
Test: setjmp.setjmp_smoke
Change-Id: Ia0a160656b9e83cdec611ac196b1ae62f082ab6c
 2022-10-18 23:04:12 +00:00
Elliott Hughes
c800a3bd02 riscv64: don't store both arguments in the same place on the stack. 
All the pthread tests are, unsurprisingly, broken without this fix.

Test: treehugger
Change-Id: Ia4c6ac077f3bbd749201ae8d200ec99093f7f4bc
 2022-10-18 20:01:58 +00:00
Elliott Hughes
e1905ed629 riscv64 setjmp. 
Signed-off-by: Mao Han <han_mao@linux.alibaba.com>
Signed-off-by: Xia Lifang <lifang_xia@linux.alibaba.com>
Signed-off-by: Chen Guoyin <chenguoyin.cgy@linux.alibaba.com>
Signed-off-by: Wang Chen <wangchen20@iscas.ac.cn>
Signed-off-by: Lu Xufan <luxufan@iscas.ac.cn>
Test: m
Change-Id: I02cf117f67bda74516e4de8cd6f4c05efdb9a85b
 2022-10-17 23:23:36 +00:00
Elliott Hughes
ebc19a9ccb riscv64: add bionic assembler and string functions. 
Pull the portable C string functions from FreeBSD, and do fairly literal
translations of our existing .S files for the bionic-specific stuff.

Test: treehugger
Change-Id: Id42e5b8a51ed73155be020d74edd7011a2103574
 2022-10-14 23:25:36 +00:00